Raises 50m

• London-based Recursive Superintelligence, founded in 2025 by former leaders from OpenAI, Google DeepMind, Meta AI, and Uber AI, has raised $650 million at a $4.65 billion valuation in a round led by GV and Greycroft with participation from AMD Ventures and NVIDIA. • The startup's core technology approach focuses on automating the AI research process itself, developing systems capable of improving their own architecture, training methods, and evaluation processes without continuous human oversight. • The company currently operates from San Francisco and London offices with over 25 researchers and engineers, and plans to use fresh funding to secure large-scale compute infrastructure and run its first Level 1 autonomous training system.

• AI agent startup Sierra Technologies announced a $950 million funding round at a $15 billion valuation, just eight months after closing a $350 million Series A round. • Alphabet Inc.'s GV venture capital arm and Tiger Global led the investment round, joined by Benchmark, Sequoia, Greenoaks, and several other investors. • The rapid $15 billion valuation reflects investor confidence in Sierra's AI agent capabilities for enterprise applications.

Musician Chris Martin, tennis star Iga Świątek and footballer Robert Lewandowski join Piotr Garkowski in epic fundraiserA Polish social media influencer has raised more than £50m after a nine-day, non-stop online stream during which he was joined by a parade of celebrity guests to help a charity supporting children battling cancer.Streaming from a studio flat in right-bank Warsaw, social media influencer Piotr Garkowski, 23, nicknamed Łatwogang, listened to a charity song dedicated to children battling cancer on loop for nine days straight, filling time with entertaining dares and celebrity appearances. Continue reading...

• Factory, a three-year-old startup, raised $150 million led by Khosla Ventures, achieving a $1.5 billion valuation on April 17, 2026. • The funding targets AI coding tools that automate software development for enterprises, freeing developers for complex tasks. • This round reflects booming investor interest in AI automation amid US tech sector's push for efficiency.

• Defense aviation startup Hermeus secured $350 million in funding on April 7, 2026, to develop autonomous hypersonic fighters following supersonic flight demonstrations. • The investment supports advancement toward operational hypersonic aircraft, targeting U.S. military applications in next-generation aviation. • This funding underscores surging interest in hypersonic tech amid geopolitical tensions, positioning Hermeus as a key player in defense innovation.

• Linx Security secured $50 million in funding to expand its artificial intelligence-driven identity platform amid rising identity-based attacks on enterprises. • The investment targets enhancements in AI capabilities as companies face intensified threats from identity exploitation in cybersecurity incidents. • This funding round underscores growing demand for advanced identity security solutions in the US tech sector, enabling scalable protection for enterprise environments.

• Linx Security secured $50 million in funding to expand its AI-driven identity platform amid rising identity-based attacks on enterprises. • The funding supports growth as companies face intensified threats bypassing traditional security perimeters. • This investment highlights the surging demand for AI solutions in cybersecurity, positioning Linx to compete in a market projected for rapid expansion.